Bridgeport Fittings 4457-DC Mighty-Merge Zinc Die-Cast EMT to AC/FMC Transition Coupling, 1" to 3/8"

Bridgeport Fittings 4457-DC Mighty-Merge Zinc Die-Cast EMT to AC/FMC Transition Coupling, 1" to 3/8"

The Bridgeport Fittings 4457-DC Mighty-Merge coupling is a zinc die-cast transition fitting engineered to connect 1" EMT conduit to 3/8" AC or FMC cable in a single combination fitting. Designed for electricians who need a fast, dependable transition between rigid EMT conduit runs and flexible AC or FMC whips, this Mighty-Merge coupling merges multiple connection points into one compact zinc die-cast body. The 1" to 3/8" sizing lets contractors bridge conduit types on the same job without stacking extra couplings, reducers, or adapters, which streamlines panel, box, and enclosure hookups on commercial, industrial, and renovation projects where both EMT and flexible cable are present on the same run.

Key Features

• Trade Size: Transitions 1" EMT conduit to 3/8" AC or FMC cable in a single fitting, eliminating the need for separate reducers.
• Durable Construction: Zinc die-cast body provides long-lasting strength and stands up to repeated handling on active job sites.
• Mighty-Merge Design: Combination-style coupling merges EMT-to-flex transitions into one quadruple-connection fitting, cutting part count and installation time.
• Versatile Compatibility: Accepts 3/8" AC (armored cable) or FMC (flexible metal conduit) on the flex side, giving installers flexibility in cable selection.
• Space-Saving Coupling: Quadruple AC/FMC connection points let installers land multiple flex runs from a single 1" EMT termination point, saving space inside boxes and enclosures.
• Simplified Inventory: One Mighty-Merge fitting replaces multiple individual couplings and reducers, simplifying truck stock for electrical contractors.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Transitioning EMT Conduit Runs to AC or FMC Cable
• Panelboard and Enclosure Wiring Connections
• Commercial and Industrial Electrical Installations
• Renovation and Retrofit Wiring Projects
• Combining Multiple Flexible Conduit Whips at a Single EMT Termination
• Consolidated Conduit-to-Cable Transitions in Junction Boxes

Why Bridgeport Fittings?

Bridgeport Fittings builds the 4457-DC Mighty-Merge coupling from zinc die-cast material for a rugged, long-lasting transition fitting that electricians can depend on in demanding EMT-to-flex applications. The combination design reduces the number of individual fittings needed on a job, saving installation time while keeping conduit-to-cable transitions secure and organized. For contractors who need a dependable way to move from 1" EMT conduit to 3/8" AC or FMC cable without a pile of extra couplings, the Mighty-Merge coupling delivers straightforward, space-saving performance backed by Bridgeport Fittings' durable zinc die-cast construction.